I wonder if it has to do with your security settings and popups?
I use Firefox, not IE, so I really can't tell more than that.
One thing I would recommend is that if that happens again, take a screenshot of your computer (hit SHIFT and PRINT SCREEN at the same time) and then open up an email, hit Edit/Paste and the screenshot will insert into your email. Then address that to Amanda (webmom AT Familycorner DOT com). If she sees the error message she may be able to figure out what the problem is.